MicroLogix 1200 to PowerFlex 4 using Modbus

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SLC-500 Micro ModbusThis second program is based on the first, but uses the Modbus Master protocol available in the latest release of the MicroLogix 1200, as well as a 1761-Net-AIC.

The biggest obstacle in getting this configuration to work was trying to find the polarity of the comm lines (i.e. does + comm on the AIC go to A or B comm on the drive?) as well as realizing all the modbus addresses are offset by 1 (which even Rockwell Drives Div. missed in Rev 1 of the subsequently release tech note).

Since this file was published, Rockwell has release (and fixed) a tech note, and also has an excellent 2004 HOT LAB.

Requirements:

  • RSLogix 500 Version: 6.1
  • Additional Requirements: Micro1200 & PowerFlex 4 /40
  • File Size: 60 kb
  • Uploaded on: 02/09/04
  • Entered By: Shawn Michael Tierney

Download Link:

Sincerely,

Shawn Tierney
Automation Blogger and Trainer

Need personalized help? For as little as $25 per month you can get direct access to ask me Rockwell PLC, HMI, and SCADA questions! Learn the details at Patreon.com/Automation

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